Linker::Location Class Reference

Represents a single offset within a section, or an absolute location in memory if the section is null. More...

#include <location.h>

Public Member Functions
	Location (std::shared_ptr< Section > section, offset_t offset=0)
	Creates a location within a section.
	Location (offset_t offset=0)
	Creates an absolute location.
bool	Displace (const Displacement &displacement)
	Recalculates location after a section has moved.
Position	GetPosition (bool segment_of=false) const
	Calculates the address.
bool	operator== (const Location &other) const
Location &	operator+= (offset_t value)
Location &	operator-= (offset_t value)

Public Attributes
std::shared_ptr< Section >	section
	The section the symbol is located in, or null for an absolute location.
offset_t	offset
	The offset of the symbol within a section, or the absolute address.

Detailed Description

Represents a single offset within a section, or an absolute location in memory if the section is null.

Member Function Documentation

Displace()

bool Location::Displace

(

const Displacement &

displacement

)

Recalculates location after a section has moved.

Parameters

displacement

A map from sections to locations, specifying the new starting place of the section. This can also indicate when a section has been appended to another one, and the location will be updated to reference the new section.

Returns

True if location changed due to displacement.

GetPosition()

Position Location::GetPosition

(

bool

segment_of = false

)

const

Calculates the address.

Using the starting addresses of sections, calculates the address of the location, as well as the segment it belongs to.

On some platforms, most prominently on the Intel 8086, addresses are composed of a preferred segment and an offset within that segment. Symbols will have an associated hardware segment, which is usually, but not always, mapped onto the linker's idea of a Segment.

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The documentation for this class was generated from the following files:

• src/linker/location.h
• src/linker/location.cc